COIL光束填充因子F的实验研究

采用CCD阵列测量技术，设计了对非稳腔、高遮拦比的COIL激光填充因子F的测量系统，利用两台光束质量分析仪同时测量了激光近场和远场光斑，通过Matlab软件对光束质量分析仪所测数据进行处理，给出光束填充因子。在与测得的光束质量数据进行对比后表明，填充因子F与光束质量存在一定的关系，F值越大，光束质量越好。

Experimental study on beam fill factor F of COIL

Design of the beam fill factor measurement system for unstable resonator and high obstructed ratio chemical oxygen iodine laser by using CCD arrays measuring technique.The near-field and far-field light spot are measured by two laser beam analyzers(LBA).The fill factor is obtained through LBA measuring data that processed by Matlab software.There is a certain relationship with fill factor and beam quality factor after comparing the data,the beam quality factor increases with increasing of fill factor.